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OPEN ACCESS EXPERIANCES AND WAYAHEAD. OPEN ACCESS: DEFINITION AS PER ELECTRICITY ACT, 2003. Section 2 (47)
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OPEN ACCESS: DEFINITION AS PER ELECTRICITY ACT, 2003 Section 2 (47) “Open access” means the non-discriminatory provision for the use of transmission lines or distribution system or associated facilities with such lines or system by any licensee or consumer or a person engaged in generation in accordance with the regulations specified by the Appropriate Commission;”
CERC Open Access Regulations, 2008 3.Subject to any other regulations specified by the Commission, the long-term customer shall have first priority for using the inter-State transmission system for the designated use. These Regulations shall apply for utilization of surplus capacity available thereafter on the inter-State transmission system by virtue of- (a)Inherent design margins; (b) Margins available due to variations in power flows; (c ) Margins available due to in-built spare transmission capacity created to cater to future load growth or generation addition:
OPEN ACCESS IN INTER-STATE TRANSMISSION Implemented w.e.f. 6-May-2004 Products – Long term Access Short term Access Monthly Advance First Come First Serve Day ahead Same day transactions Permits usage of spare transmission capacity through a transparent process Offers choice and freedom to buy & sell power
CERC Open Access Regulations, 2008 Effective 01.04.2008 Regulations cover only Short-term Open Access Transactions categorized as Bilateral and Collective (through PX) Earlier Products of Short-Term retained under Bilateral Transactions Nodal Agency Bilateral : RLDCs Collective : NLDC
CERC Open Access Regulations, 2008 Transmission Charges moved from “Contract Path” to “Point of Connection” Both Buyers and Sellers of Collective transactions to bear transmission charges and absorb transmission losses Inter-Regional links -No Separate treatment. Emphasis on “Scheduling” rather than “Reservation” SLDC consent mandated along with application In case of Congestion – e-Bidding without Price Cap Exit Option provided with payment of up to 5 days open access charges. Moving towards empowerment of SLDCs
Transparency - Information Sharing Available Transfer Capacity (ATC) -3 months ahead Past & Current Transactions Injection & Drawal Schedules Un-requisitioned Surplus Frequency Trend Urgent market information – unit tripping, load crash, contingencies 52 week ISTS pooled losses STOA Rate / Procedures for capacity reservation
Regulation 2004 of CERC Regulations on Short-Term Open Access (06.05.2004 to 31.03.2005) • Open Access Duration • - Up to One year maximum -single application possible • ST Rate • - in Rs/MW/Day - Min. Charges for one day • Transmission Charges • a. Intra Regional – 25% of Long Term Charges • b. Inter Regional – 25% of Long Term Charges • RLDC Charges • a. Application fee – Rs. 5000/- • b. Scheduling Charges • – Rs. 3000/day for each RLDC involved • c. Handling &Service Charges - 2% of total charges • Congestion Management - E-Bid without price cap
Regulation 2004 (Amendment 2005)of CERC Regulationson Short Term Open Access (01.04.2005 to 31.03.2008) • Open Access Duration • - Up to three months -single application possible • ST Rate • - in Rs/MW/Day • - Charges as per continuous block of up to 6 hours, 12 hours, • and more than 12 hours • Transmission Charges • a. Intra Regional – 25% of Long Term Charges • b. Inter Regional – 50% of Long Term Charges • RLDC Charges • a. Application fee – Rs. 5000/- • b. Scheduling Charges • – Rs. 3000/day for each RLDC involved • c. Handling &Service Charges - Nil • Congestion Management - E-Bid without price cap
Regulation 2008 of CERC Regulationson Short Term Open Access (From 01.04.2008) • Open Access Duration • - Bilateral -Up to 3 months separate application for each month • Collective: -Only Day ahead • ST Rate • - in Rs/MWh - Based on Scheduled Energy • Transmission Charges • Bilateral: • Rs.30/MWh – intra- regional • Rs.60/MWh – Between adjacent regions • Rs90/MWh – Wheeling through one or more region • Collective Transactions (Px): • -Rs. 30/MWh for each point of injection and drawal
Regulation 2008 of CERC Regulationson Short Term Open Access (From 01.04.2008) RLDC Charges Bilateral: a. Application fee – Rs. 5000/- b. Scheduling Charges – Rs. 2000/day for each RLDC involved c. Handling & Service Charges –Nil Collective Transactions: a. Application fee – Rs. 5000/- b. Scheduling Charges – Rs. 5000/day to NLDC for each State involved ; -NLDC to Share with RLDCs Congestion Management Bilateral: - E-Bid without price cap Collective: - NLDC in coordination with Px
Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)
Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)
Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)
UI vs STOA market (All regions) 100% power market 92% long term market 5% UI market 3% STOA market
STOA – SUCCESS STORY Developed in consultation with all stakeholders Applications Processed (Since Beginning) > 20,000 No. Volume (Approved Energy) (Since Beginning)> 90BUs Applications Approved > 95 % Refusal/Non-consent by SLDCs > 3 - 4 % Refusal due to system constraints < 0.5 % Curtailment in real time < 1% Near Dispute free implementation Logistics/infrastructure -In-house Robust Financial Settlement System Confidence Building & Dissemination of knowledge
STOA – Encouraging facts Transactions between extreme corners of the country Kerala to Punjab Nagaland, Arunachal, Tripura to Punjab, UP Most of the States participated. Market Players – Simultaneous Buy & Sell on same day Delhi – Buy in Peak, sell in off-peak Transactions from few MW to hundreds of MW – 2 MW (JP Cement Rewa,MP – JP Cement, Ayodhya,UP) – 800 MW (BSES Rajdhani to UP) Surplus during Weekend/Holidays utilised Budge-Budge of CESC : National Award for PLF of 99.6% in 2005-06 Improved performance of Generating Plants Diversity being gainfully utilized
Issues Skewed load – generation levels Excessive line loading Non Consent by STU/SLDC for injection of power by embedded customers Telemetry Metering Scheduling PPAs
Issues UI Settlement of Intra state entities Before the Implementation of Open Access Regulations 2008, Various STU/SLDCs are charging differently with UI rates for different embedded customers. In the New Open Access Regulations the problem is addressed Functional Autonomy of SLDC Default in UI payments
STOA CASE KAYAMKULAM RGCCPP, NTPC to PSEB 150 MW for 31 days on Round the Clock basis
SR STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days PSEB NR CUSTOMER: NVVNL TRADER: NVVNL HVDC BACK TO BACK AT VINDHYACHAL IN WR INJECTING UTILITY KYCPP,KSEB DRAWEE UTILITY PSEB WR INTERVENING REGION WR HVDC BACK TO BACK AT BHADRWATHI IN WR • INTERVENING REGIONAL LINK • SR-WR • WR-NR INTERVENING STATE TRANSMISSION UTILITYKSEB KERALA CAPACITY APPROVED 150 MW DAILY PERIOD 0000-2400 HRS KAYAMKULAM RGCCPP NTPC)
LOSSES IN KERALA 0.75% AT KERALA PERIPHERY 148.9 MW LOSSES IN SR 3.12% AT SR-WR PERIPHERY 144.3 MW SR LOSSES IN WR 4.0% AT WR-NR PERIPHERY 138.5 MW STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days PSEB NR EXPORT AT RGCCPP BUS 150 MW HVDC BACK TO BACK AT VINDHYACHAL IN WR WR HVDC BACK TO BACK AT BHADRWATHI IN WR KERALA LOSSES IN NR 3.0% PSEB RECIEVES 134.4 MW KAYAMKULAM RGCCPP(NTPC)
SR STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days PSEB APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION NR • SCHEDULING CHARGES PER DAY • Rs 3000 FOR SRLDC • Rs 3000 FOR WRLDC • Rs 3000 FOR NRLDC • Rs 1000 FOR KSEB HVDC BACK TO BACK AT VINDHYACHAL IN WR WR HVDC BACK TO BACK AT BHADRWATHI IN WR • TRANSMISSION CHARGES PER MW PER DAY • Rs 843 FOR CTU-SR • Rs 1311 FOR SR-WR LINK • Rs 357 FOR CTU-WR • Rs 600 FOR WR-NR LINK • Rs 594 FOR CTU-NR • Rs 672.07 FOR KSEB TOTAL TRANSMISSION CHARGE PER UNIT 18.5/. Ps… KERALA Details KAYAMKULAM RGCCPP(NTPC)
SR STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days PSEB APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION NR • SCHEDULING CHARGES PER DAY • Rs 2000 FOR SRLDC • Rs 2000 FOR WRLDC • Rs 2000 FOR NRLDC • Rs 2000 FOR KSEB HVDC BACK TO BACK AT VINDHYACHAL IN WR WR HVDC BACK TO BACK AT BHADRWATHI IN WR • TRANSMISSION CHARGES PER MWHR • Rs 90 FOR Bilateral Wheeling • through one or more region • Rs 30 FOR KSEB TOTAL TRANSMISSION CHARGE PER UNIT 12.2/. Ps… KERALA Details KAYAMKULAM RGCCPP(NTPC)
BACK CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF RGCCPP – PSEB OF NVVNL (150 MW)
BACK CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF RGCCPP – PSEB OF NVVNL (150 MW)
STOA CHARGES COLLECTED BY RLDCS DURING THE YEAR 2007-08 All figures in Crores of Rs.
STOA CASEComparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008) WBSEB to AJMER (Rajasthan) 20 MW for 27 days from 0000 to 1700 hrs. and 2300 to 2400 hrs.
SR WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND 2300-2400 HRS) 20 MWFROM 05.01.05 to 31.01.05 HVDC BACK TO BACK AT VINDHYACHAL IN WR CUSTOMER: NVVNL TRADER: NVVNL RAJASTHAN WB INJECTING UTILITY WBSEB AJMER NR DRAWEE UTILITY AJMER (DISCOM) INTERVENING REGION SR & WR ER • INTERVENING REGIONAL LINK • ER-SR • SR-WR • WR-NR WR HVDC BACK TO BACK AT BHADRWATHI IN WR INTERVENING STATE TRANSMISSION UTILITYRRVPN CAPACITY APPROVED 20 MW DAILY PERIOD 0000-1700 & 2300-2400 hrs HVDC BACK TO BACK AT GAZUWAKA IN SR DATE OF COMMENCEMENT 05-01-05 DATE OF EXPIRY 31-01-05
SR WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND 2300-2400 HRS) 20 MW FROM 05.01.05 to 31.01.05 HVDC BACK TO BACK AT VINDHYACHAL IN WR EXPORT AT WB 20 MW LOSSES IN ER 3% NR AT ER-SR PERIPHERY 19.4 MW RAJASTHAN WB LOSSES IN SR 3.12% AJMER AT SR-WR PERIPHERY 18.8 MW ER LOSSES IN WR 4% WR AT WR-NR PERIPHERY 18.1 MW LOSSES IN NR 3% HVDC BACK TO BACK AT BHADRWATHI IN WR AT NR-RAJ.PERIPHERY 17.6 MW LOSSES IN RAJASTHAN 3% AJMER RECIEVES 17.1 MW HVDC BACK TO BACK AT GAZUWAKA IN SR TOTAL LOSSES FOR TRANSACTION 2.9 MW
SR MORE DETAILS NEW WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND 2300-2400 HRS) 20 MW AT INJECTION POINT FROM 05.01.05 to 31.01.05 HVDC BACK TO BACK AT VINDHYACHAL IN WR APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION RAJASTHAN NR WB • SCHEDULING CHARGES PER DAY • Rs 3000 FOR ERLDC • Rs 3000 FOR SRLDC • Rs 3000 FOR WRLDC • Rs 3000 FOR NRLDC • Rs 3000 FOR RAJASTHAN AJMER ER WR • TRANSMISSION CHARGES PER MW PER DAY • Rs 313.93 FOR CTU-ER • Rs 1462.44 FOR ER-SR LINK • Rs 700.91 FOR CTU-SR • Rs 881.49 FOR SR-WR LINK • Rs 339.98 FOR CTU-WR • Rs 233.92 FOR WR-NR LINK • Rs 649.86 FOR CTU-NR • Rs 686.3 FOR RAJASTHAN HVDC BACK TO BACK AT BHADRWATHI IN WR HVDC BACK TO BACK AT GAZUWAKA IN SR TOTAL TRANSMISSION CHARGE PER UNIT 34.15Ps/.
BACK CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
BACK CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
BACK CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
Unscheduled Inter-change (UI) Charges Any mismatch between the scheduled and the actual drawal at drawal points and scheduled and the actual injection at injection points for the intra- State entities shall be determined by the concerned State Load Despatch Centre and covered in the intra-State UI accounting scheme. Unless specified otherwise by the concerned State Commission, UI rate for intra-State entity shall be 105% (for over-drawals or under generation) and 95% (for under-drawals or over generation) of UI rate at the periphery of regional entity.
Development of the Power Market in India Development of the Power Market Section 66, IE Act 2003 National Electricity Policy, 12-Feb-2005, Para 5.7.1(d) Implementation of Inter-State ABT : 2002-03 Metering, Scheduling and Settlement Introduction of Open Access in Inter State Transmission : May 2004 Development of PX Staff paper by CERC : July 2006 Public hearing : December 2006 Guidelines for setting up PX : February 2007 Approval for setting up first PX : MCX, August 2007
Power Exchanges in India A Power exchange facilitates equitable, transparent and efficient trading of power. Bridges the demand supply mismatch by bringing larger players together for buying and selling in an auction based system. While maintaining complete anonymity, resolves the constraints in the earlier formats, Viz. search costs, asymetric information, transaction costs, and counter-party risks.
Power Exchanges in India Presently CERC has allowed only Day ahead Market At present CERC has allowed only National level operated Power exchanges. In due course if need arises Regional level operated exchanges will come. In power exchanges, as per CERC norms the price discovery is through Double sided closed auction. For Power Exchange transactions the Nodal agency will be National Load Despatch Centre (NLDC).
Power Exchanges in India Generally the ATC declaration is done by NLDC on its web site every day. Depending on the corridor availabilities the solution is found out by the power exchanges and the allowed trades will be intimated to NLDC. If there is no congestion NLDC will accept the trades and issue the schedules to the power exchange and the same will be implemented in RLDC schedules. In Power Exchange transactions both buyer and seller have to pay the Transmission and operating charges separately. The transmission losses also have to be borne by the buyer and seller separately.
OPEN ACCESS: DEFINITION AS PER ELECTRICITY ACT, 2003 “ licensee “ means a person who has been granted a licence under section 14; The Appropriate Commission may, on application made to it under section 15, grant any person licence to any person - (a) to transmit electricity as a transmission licensee; or (b) to distribute electricity as a distribution licensee; or (c) to undertake trading in electricity as an electricity trader,in any area which may be specified in the licence: Back
OPEN ACCESS: DEFINITION AS PER ELECTRICITY ACT, 2003 "consumer" means any person who is supplied with electricity for his own use by a licensee or the Government or by any other person engaged in the business of supplying electricity to the public under this Act or any other law for the time being in force and includes any person whose premises are for the time being connected for the purpose of receiving electricity with the works of a licensee, the Government or such other person, as the case may be; Back
OPEN ACCESS: DEFINITION AS PER ELECTRICITY ACT, 2003 No person shall (a) transmit electricity; or (b) distribute electricity; or (c) undertake trading in electricity, unless he is authorised to do so by a licence issued under section 14, or is exempt under section 13. Back